# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: |
    <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.agf">OHARA Zemax catalog 2017-11-30</a> (obtained from <a href="http://www.ohara-inc.co.jp/en/product/optical/list/">http://www.ohara-inc.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.pdf">OHARA glass data sheets</a>
COMMENTS: |
    Recommended 
DATA:
  - type: formula 2
    wavelength_range: 0.38 2.4
    coefficients: 0 1.75156623 0.0135004681 0.364006304 0.0668245147 2.47874141 170.756006
  - type: tabulated k
    data: |
        0.380 3.8494E-06
        0.390 1.2429E-06
        0.400 4.4328E-07
        0.420 1.5039E-07
        0.440 9.9438E-08
        0.460 8.1431E-08
        0.480 6.5494E-08
        0.500 5.6098E-08
        0.550 3.0745E-08
        0.600 1.9137E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 4.4653E-08
        1.600 7.6624E-08
        1.800 2.0195E-07
        2.000 4.3563E-07
        2.200 1.2329E-06
        2.400 2.4414E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -6.7e-06 1.01e-08 -3.04e-11 8.91e-07 1.32e-09 0.324
    nd: 1.808095
    Vd: 22.760817
    glass_code: 808228
    density:
      - value: 3290
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.3e-06
      - temperature_range: 293 573
        value: 1.04e-05
    dPgF: 0.0261
    resistance:
        climatic: 1.0
        acid: 1.0
        phosphate: 1.0